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--                                                                          --
--                    Copyright (C) 2021, AdaCore                           --
--                                                                          --
--  Redistribution and use in source and binary forms, with or without      --
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with System.Machine_Code; use System.Machine_Code;

package body Cortex_M.Hints is

   -----------
   -- Yield --
   -----------

   procedure Yield is
   begin
      Asm ("yield", Volatile => True);
   end Yield;

   ----------------
   -- Send_Event --
   ----------------

   procedure Send_Event is
   begin
      Asm ("sev", Volatile => True);
   end Send_Event;

   --------------------
   -- Wait_For_Event --
   --------------------

   procedure Wait_For_Event is
   begin
      Asm ("wfe", Volatile => True);
   end Wait_For_Event;

   ------------------------
   -- Wait_For_Interrupt --
   ------------------------

   procedure Wait_For_Interrupt is
   begin
      Asm ("wfi", Volatile => True);
   end Wait_For_Interrupt;

end Cortex_M.Hints;
